Index: third_party/lzma_sdk/C/Xz.h |
=================================================================== |
--- third_party/lzma_sdk/C/Xz.h (revision 0) |
+++ third_party/lzma_sdk/C/Xz.h (revision 0) |
@@ -0,0 +1,252 @@ |
+/* Xz.h - Xz interface |
+2010-09-17 : Igor Pavlov : Public domain */ |
+ |
+#ifndef __XZ_H |
+#define __XZ_H |
+ |
+#include "Sha256.h" |
+ |
+EXTERN_C_BEGIN |
+ |
+#define XZ_ID_Subblock 1 |
+#define XZ_ID_Delta 3 |
+#define XZ_ID_X86 4 |
+#define XZ_ID_PPC 5 |
+#define XZ_ID_IA64 6 |
+#define XZ_ID_ARM 7 |
+#define XZ_ID_ARMT 8 |
+#define XZ_ID_SPARC 9 |
+#define XZ_ID_LZMA2 0x21 |
+ |
+unsigned Xz_ReadVarInt(const Byte *p, size_t maxSize, UInt64 *value); |
+unsigned Xz_WriteVarInt(Byte *buf, UInt64 v); |
+ |
+/* ---------- xz block ---------- */ |
+ |
+#define XZ_BLOCK_HEADER_SIZE_MAX 1024 |
+ |
+#define XZ_NUM_FILTERS_MAX 4 |
+#define XZ_BF_NUM_FILTERS_MASK 3 |
+#define XZ_BF_PACK_SIZE (1 << 6) |
+#define XZ_BF_UNPACK_SIZE (1 << 7) |
+ |
+#define XZ_FILTER_PROPS_SIZE_MAX 20 |
+ |
+typedef struct |
+{ |
+ UInt64 id; |
+ UInt32 propsSize; |
+ Byte props[XZ_FILTER_PROPS_SIZE_MAX]; |
+} CXzFilter; |
+ |
+typedef struct |
+{ |
+ UInt64 packSize; |
+ UInt64 unpackSize; |
+ Byte flags; |
+ CXzFilter filters[XZ_NUM_FILTERS_MAX]; |
+} CXzBlock; |
+ |
+#define XzBlock_GetNumFilters(p) (((p)->flags & XZ_BF_NUM_FILTERS_MASK) + 1) |
+#define XzBlock_HasPackSize(p) (((p)->flags & XZ_BF_PACK_SIZE) != 0) |
+#define XzBlock_HasUnpackSize(p) (((p)->flags & XZ_BF_UNPACK_SIZE) != 0) |
+ |
+SRes XzBlock_Parse(CXzBlock *p, const Byte *header); |
+SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, Bool *isIndex, UInt32 *headerSizeRes); |
+ |
+/* ---------- xz stream ---------- */ |
+ |
+#define XZ_SIG_SIZE 6 |
+#define XZ_FOOTER_SIG_SIZE 2 |
+ |
+extern Byte XZ_SIG[XZ_SIG_SIZE]; |
+extern Byte XZ_FOOTER_SIG[XZ_FOOTER_SIG_SIZE]; |
+ |
+#define XZ_STREAM_FLAGS_SIZE 2 |
+#define XZ_STREAM_CRC_SIZE 4 |
+ |
+#define XZ_STREAM_HEADER_SIZE (XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE + XZ_STREAM_CRC_SIZE) |
+#define XZ_STREAM_FOOTER_SIZE (XZ_FOOTER_SIG_SIZE + XZ_STREAM_FLAGS_SIZE + XZ_STREAM_CRC_SIZE + 4) |
+ |
+#define XZ_CHECK_MASK 0xF |
+#define XZ_CHECK_NO 0 |
+#define XZ_CHECK_CRC32 1 |
+#define XZ_CHECK_CRC64 4 |
+#define XZ_CHECK_SHA256 10 |
+ |
+typedef struct |
+{ |
+ int mode; |
+ UInt32 crc; |
+ UInt64 crc64; |
+ CSha256 sha; |
+} CXzCheck; |
+ |
+void XzCheck_Init(CXzCheck *p, int mode); |
+void XzCheck_Update(CXzCheck *p, const void *data, size_t size); |
+int XzCheck_Final(CXzCheck *p, Byte *digest); |
+ |
+typedef UInt16 CXzStreamFlags; |
+ |
+#define XzFlags_IsSupported(f) ((f) <= XZ_CHECK_MASK) |
+#define XzFlags_GetCheckType(f) ((f) & XZ_CHECK_MASK) |
+#define XzFlags_HasDataCrc32(f) (Xz_GetCheckType(f) == XZ_CHECK_CRC32) |
+unsigned XzFlags_GetCheckSize(CXzStreamFlags f); |
+ |
+SRes Xz_ParseHeader(CXzStreamFlags *p, const Byte *buf); |
+SRes Xz_ReadHeader(CXzStreamFlags *p, ISeqInStream *inStream); |
+ |
+typedef struct |
+{ |
+ UInt64 unpackSize; |
+ UInt64 totalSize; |
+} CXzBlockSizes; |
+ |
+typedef struct |
+{ |
+ CXzStreamFlags flags; |
+ size_t numBlocks; |
+ size_t numBlocksAllocated; |
+ CXzBlockSizes *blocks; |
+ UInt64 startOffset; |
+} CXzStream; |
+ |
+void Xz_Construct(CXzStream *p); |
+void Xz_Free(CXzStream *p, ISzAlloc *alloc); |
+ |
+#define XZ_SIZE_OVERFLOW ((UInt64)(Int64)-1) |
+ |
+UInt64 Xz_GetUnpackSize(const CXzStream *p); |
+UInt64 Xz_GetPackSize(const CXzStream *p); |
+ |
+typedef struct |
+{ |
+ size_t num; |
+ size_t numAllocated; |
+ CXzStream *streams; |
+} CXzs; |
+ |
+void Xzs_Construct(CXzs *p); |
+void Xzs_Free(CXzs *p, ISzAlloc *alloc); |
+SRes Xzs_ReadBackward(CXzs *p, ILookInStream *inStream, Int64 *startOffset, ICompressProgress *progress, ISzAlloc *alloc); |
+ |
+UInt64 Xzs_GetNumBlocks(const CXzs *p); |
+UInt64 Xzs_GetUnpackSize(const CXzs *p); |
+ |
+typedef enum |
+{ |
+ CODER_STATUS_NOT_SPECIFIED, /* use main error code instead */ |
+ CODER_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */ |
+ CODER_STATUS_NOT_FINISHED, /* stream was not finished */ |
+ CODER_STATUS_NEEDS_MORE_INPUT /* you must provide more input bytes */ |
+} ECoderStatus; |
+ |
+typedef enum |
+{ |
+ CODER_FINISH_ANY, /* finish at any point */ |
+ CODER_FINISH_END /* block must be finished at the end */ |
+} ECoderFinishMode; |
+ |
+typedef struct _IStateCoder |
+{ |
+ void *p; |
+ void (*Free)(void *p, ISzAlloc *alloc); |
+ SRes (*SetProps)(void *p, const Byte *props, size_t propSize, ISzAlloc *alloc); |
+ void (*Init)(void *p); |
+ SRes (*Code)(void *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, |
+ int srcWasFinished, ECoderFinishMode finishMode, int *wasFinished); |
+} IStateCoder; |
+ |
+#define MIXCODER_NUM_FILTERS_MAX 4 |
+ |
+typedef struct |
+{ |
+ ISzAlloc *alloc; |
+ Byte *buf; |
+ int numCoders; |
+ int finished[MIXCODER_NUM_FILTERS_MAX - 1]; |
+ size_t pos[MIXCODER_NUM_FILTERS_MAX - 1]; |
+ size_t size[MIXCODER_NUM_FILTERS_MAX - 1]; |
+ UInt64 ids[MIXCODER_NUM_FILTERS_MAX]; |
+ IStateCoder coders[MIXCODER_NUM_FILTERS_MAX]; |
+} CMixCoder; |
+ |
+void MixCoder_Construct(CMixCoder *p, ISzAlloc *alloc); |
+void MixCoder_Free(CMixCoder *p); |
+void MixCoder_Init(CMixCoder *p); |
+SRes MixCoder_SetFromMethod(CMixCoder *p, int coderIndex, UInt64 methodId); |
+SRes MixCoder_Code(CMixCoder *p, Byte *dest, SizeT *destLen, |
+ const Byte *src, SizeT *srcLen, int srcWasFinished, |
+ ECoderFinishMode finishMode, ECoderStatus *status); |
+ |
+typedef enum |
+{ |
+ XZ_STATE_STREAM_HEADER, |
+ XZ_STATE_STREAM_INDEX, |
+ XZ_STATE_STREAM_INDEX_CRC, |
+ XZ_STATE_STREAM_FOOTER, |
+ XZ_STATE_STREAM_PADDING, |
+ XZ_STATE_BLOCK_HEADER, |
+ XZ_STATE_BLOCK, |
+ XZ_STATE_BLOCK_FOOTER |
+} EXzState; |
+ |
+typedef struct |
+{ |
+ EXzState state; |
+ UInt32 pos; |
+ unsigned alignPos; |
+ unsigned indexPreSize; |
+ |
+ CXzStreamFlags streamFlags; |
+ |
+ UInt32 blockHeaderSize; |
+ UInt64 packSize; |
+ UInt64 unpackSize; |
+ |
+ UInt64 numBlocks; |
+ UInt64 indexSize; |
+ UInt64 indexPos; |
+ UInt64 padSize; |
+ |
+ UInt64 numStreams; |
+ |
+ UInt32 crc; |
+ CMixCoder decoder; |
+ CXzBlock block; |
+ CXzCheck check; |
+ CSha256 sha; |
+ Byte shaDigest[SHA256_DIGEST_SIZE]; |
+ Byte buf[XZ_BLOCK_HEADER_SIZE_MAX]; |
+} CXzUnpacker; |
+ |
+SRes XzUnpacker_Create(CXzUnpacker *p, ISzAlloc *alloc); |
+void XzUnpacker_Free(CXzUnpacker *p); |
+ |
+/* |
+finishMode: |
+ It has meaning only if the decoding reaches output limit (*destLen). |
+ LZMA_FINISH_ANY - use smallest number of input bytes |
+ LZMA_FINISH_END - read EndOfStream marker after decoding |
+ |
+Returns: |
+ SZ_OK |
+ status: |
+ LZMA_STATUS_FINISHED_WITH_MARK |
+ LZMA_STATUS_NOT_FINISHED |
+ SZ_ERROR_DATA - Data error |
+ SZ_ERROR_MEM - Memory allocation error |
+ SZ_ERROR_UNSUPPORTED - Unsupported properties |
+ SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src). |
+*/ |
+ |
+ |
+SRes XzUnpacker_Code(CXzUnpacker *p, Byte *dest, SizeT *destLen, |
+ const Byte *src, SizeT *srcLen, /* int srcWasFinished, */ int finishMode, |
+ ECoderStatus *status); |
+ |
+Bool XzUnpacker_IsStreamWasFinished(CXzUnpacker *p); |
+ |
+EXTERN_C_END |
+ |
+#endif |
Property changes on: third_party\lzma_sdk\C\Xz.h |
___________________________________________________________________ |
Added: svn:executable |
+ * |
Added: svn:eol-style |
+ LF |